TPC39AHM3_A/I Circuit Protection

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TVS – Diodes are a type of electronic component used to protect circuits from electrostatic discharge and electrical transients that may cause damage to system or equipment. The TPC39AHM3_A/I is a specific example of such a component and has been designed for use in a range of different applications and environments. In this article, we will discuss the application field of the TPC39AHM3_A/I and its working principle.

Application Field

The TPC39AHM3_A/I is mainly designed for use in Automotive applications, such as in ECUs, steering systems, airbag systems, and infotainment systems. It is also suitable for use in Industrial applications where a large input voltage is required, such as PCs and communication equipment.

The component is designed to be used in places where overvoltage transients and electrostatic discharges cause electrical damage and malfunction. With a peak power of 39 Watts and a surge of 15 amps, it can efficiently protect against such situations. The TPC39AHM3_A/I is also able to sustain a high working temperature of 175 degrees Celsius, which means it can be used in harsh environments and still remain reliable.

Working Principle

The TPC39AHM3_A/I uses the principle of the avalanche breakdown to protect against electrical transients and electrostatic discharges. It does this by utilizing a p-n junction diode and connecting it in a reverse bias configuration. This creates a situation where current flows through the diode but does not pass through it.

When an electrostatic discharge or an overvoltage transient occurs, the current is accelerated through the diode which causes the diode to break down and quickly halt the flow of current. The TPC39AHM3_A/I also has an internal design feature where it limits the amount of energy that passes through it. This helps to ensure that it can quickly shut down and prevent further damage or malfunctioning of the system.

The TPC39AHM3_A/I is also designed to absorb the energy of an electrical transient or electrostatic discharge, in order to help prevent further damage to the system or equipment. It is able to accomplish this by utilizing a high-quality thermal sink which dissipates the heat to the environment, stopping the transfer of energy.

Conclusion

In conclusion, the TPC39AHM3_A/I is a TVS – Diode component designed for use in Automotive applications, Industrial applications, and where high input voltage is required. It utilizes the avalanche breakdown principle in order to protect systems and equipment from electrostatic discharges and overvoltage transients, and is able to sustain a high working temperature of 175 degrees Celsius.

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